Add 21/27 and 63/80
21/27 + 63/80 is 1127/720.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 80 is 2160
Next, find the equivalent fraction of both fractional numbers with denominator 2160 - For the 1st fraction, since 27 × 80 = 2160,
21/27 = 21 × 80/27 × 80 = 1680/2160 - Likewise, for the 2nd fraction, since 80 × 27 = 2160,
63/80 = 63 × 27/80 × 27 = 1701/2160 - Add the two like fractions:
1680/2160 + 1701/2160 = 1680 + 1701/2160 = 3381/2160 - 3381/2160 simplified gives 1127/720
- So, 21/27 + 63/80 = 1127/720
In mixed form: 1407/720
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